#include<stdio.h>
int main()
{
    int int_1=80;
    printf("int_1:%d\n",int_1);
    char char_1='A';
    printf("char_1:%c,%d\n",char_1,char_1);
    char char_2=int_1;
    printf("char_2:%c\n",char_2);
    printf("%zu",sizeof(char));
    return 0;
}